Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low sulfated ash, low sulfur, low phosphorus, low zinc lubricating oil composition

a technology of phosphorus lubricating oil and low sulfur, which is applied in the direction of liquid degasification, separation processes, manufacturing tools, etc., can solve the problems of reducing wear resistance, aggregated or hardened soot accelerating wear of engine parts, etc., to achieve low sulfur content, low sulfur content, and low sulfated ash content

Active Publication Date: 2013-01-29
CHEVRON JAPAN
View PDF33 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a lubricating oil composition for internal combustion engines that has low sulfated ash, sulfur, and phosphorus, and no zinc dialkyldithiophosphate. The composition has good detergency at high temperatures and wear resistance. Additionally, when the composition is used in diesel engines, it minimizes adverse effects on exhaust gas cleaning devices such as particulate filters or oxidative or reductive catalysts. The invention is especially useful for automobile diesel engines that use fuel with low sulfur content.

Problems solved by technology

Moreover, the reduction of the content of zinc dialkyldithiophosphate results in lowering of wear resistance.
Therefore, the desired low sulfated ash content, low sulfur content, and low phosphorus content cannot be reduced to exceed a certain level.
The aggregated or hardened soot accelerates wear of the engine parts.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0094]Preparation of lubricating oil composition—A lubricating oil composition (engine oil) of the invention having an SAE viscosity grade of 5W30 was prepared using the following additives and base oil.

(A) Additives

Alkaline Earth Metal-Containing Detergent

[0095](1) sulfurized calcium phenate (Ca: 9.3 wt. %, S; 3.4 wt. %, TBN; 255 mg·KOH / g): 0.056 wt. % (in terms of Ca content)[0096](2) calcium salicylate (Ca: 6.3 wt. %, S: 0.1 wt. %, TBN: 177 mg·KOH / g): 0.056 wt. % (in terms of Ca content)[0097](3) calcium sulfonate (Ca: 2.4 wt. %, S; 2.9 wt. %, TBN; 17 mg·KOH / g): 0.020 wt. % (in terms of Ca content)

Nitrogen-Containuig Ashless Dispersant[0098](1) Bis-succinimide dispersant-1 (weight average molecular weight: 12,800 (GPC analysis, value as molecular weight corresponding to polystyrene), nitrogen content: 1.0 wt. %, chlorine content; 30 wt. ppm., prepared by the steps of thermally reacting a highly reactive polyisobutene having a number average molecular weight of approx. 2,300 (cont...

example 2

[0107]The procedures of Example 1 were repeated except that the boron compound was not used and the amount of the viscosity index improver was adjusted, to give a lubricating oil composition (engine oil, 5W30) according to the invention.

example 3

[0108]The procedures of Example 1 were repeated except that the amine oxidation inhibitor was not used, the phenolic oxidation inhibitor was used in an amount of 1.0 wt. % and the amount of the viscosity index improver was adjusted, to give a lubricating oil composition (engine oil, 5W30) according to the invention.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
viscosity indexaaaaaaaaaa
viscosity indexaaaaaaaaaa
viscosity indexaaaaaaaaaa
Login to View More

Abstract

A low sulfated ash, tow sulfur, low phosphorus, low zinc lubricating, oil composition preferably employable for internal combustion engines using a low sulfur hydrocarbon fuel comprises a base oil having a saturated component of 85 wt. % or more, a viscosity index of 110 or more, and a sulfur content of 0.01 wt. % or less; an alkaline earth metal-containing detergent; a nitrogen-containing ashless dispersant of a weight average molecular weight of 4,500 or more; a phenolic or amine oxidation inhibitor; and a basic nitrogen-containing compound-oxymolybdenum complex.

Description

[0001]This application claims the benefit under 35 U.S.C. §119 to Japanese Application No. 2006-261282, filed Sep. 26, 2006.FIELD OF INVENTION[0002]The present invention relates to a low sulfated ash, low sulfur, low phosphorus lubricating oil composition favorably employable for lubricating internal combustion engines such as diesel engines, gasoline engines, gas engines and engines using dimethyl ether fuel. Particularly, the invention relates to a low sulfated ash, low sulfur, low phosphorus lubricating oil composition which gives low adverse effects to particulate filters and catalysts for cleaning exhausted gas and which therefore can cope with the exhausted gas regulations adopted in a near future. In more particular, the invention relates to a internal combustion engine lubricating oil composition which is favorably employable for automobiles using hydrocarbon fuel having a sulfur content of approximately 0.001 wt. % or less, particularly automobiles powered by a diesel engin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): C10M141/00C10M141/12
CPCC10M169/045C10M2201/087C10M2203/1006C10M2205/022C10M2207/026C10M2207/028C10M2207/262C10M2207/289C10M2209/084C10M2215/064C10M2215/28C10M2219/046C10M2219/066C10M2219/089C10M2223/045C10N2230/04C10N2230/06C10N2230/40C10N2230/42C10N2230/43C10N2230/45C10N2230/52C10N2240/102C10N2210/01C10M2205/024C10N2210/02C10N2210/06C10N2030/04C10N2030/06C10N2030/40C10N2030/43C10N2030/42C10N2030/45C10N2030/52C10N2040/252C10N2010/12C10N2010/02C10N2010/04
Inventor NAKAZATO, MORIKUNITAKEUCHI, YOSHITAKAMURAMATSU, TAKAHIRO
Owner CHEVRON JAPAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com